Depends on resolution and Image codec. A 1080p PNG frame is typically 2 to 5 MB; a 1080p JPG at quality-85 is 200 to 500 KB; a 4K PNG is 6 to 15 MB. At the extreme, every-frame PNG extraction of a 10-minute 1080p AVI produces ~50 GB total. 照片来源默认为JPG, 透明或硬边缘来源默认为PNG, 多页来源每页产生一张图像。
Frame extraction is fast — typically 20 to 30% of source duration on the standard pipeline. A 5-minute AVI → Image bundle finishes in about a minute regardless of frame count, because the bottleneck is the Image encoder, not the AVI demuxer.
